Polluting natural waters

Water is one of our key natural resources; we must protect it vigorously.

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Oxygen cycle

The oxygen cycle describes the movement of oxygen within its three main reservoirs.


An earthquake is one of the most devastating natural phenomena.


Short-lived but extremely powerful tornadoes can cause a great deal of damage.

Continental drift

In the past, a number of geologists tried to explain why the outlines of continents seem to fit...

The soil

Soil is the loose, uppermost, fertile layer of the Earth’s crust.

The World of the seas

Seas and oceans cover almost three-quarters of the Earth’s surface. 97.5% of the total...

Eroded fault-block mountains

We can come across the remains of the Variscan and Caledonian mountain systems almost anywhere...


A geyser is a spring characterised by intermittent discharge of water and steam.

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